Carrier for pneumatic-despatch-tube apparatus.



1. W. LITGHPIELD. CARRIER FOB, PNEUMATIC DESPATGH TUBE APPARATUS.

APPLIOATION FILED. JULY 11, 1905.

Patented June 1, 1909,

UNITED STATES PATENT OFFICE.

ISAAC W. LITCHFIELD, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO LAMSONCONSOLIDATED STORE SERVICE COMPANY, OF NEWA RK, NEW JERSEY, ACORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented June 1, 1909.

7 Application filed July 11, 1905. Seiial No. 269,1 48.

To all whom "it may con-cam: Be it known that I, ISAAC W. LITCHFIELD, ofBoston, in the county of Suffolk and State of Massachusetts, haveinvented certain new and useful Improvements in Carriers for PneumaticDespatch Tube Apparatus, of which the followin is a specificatlon.

My invention re ates to improvements in carriers adapted for use inpneumatic despatch tube apparatus, and its object is to produceanindlcating device to indicate to the C and leather ring Iperator atthe central station to which. of

0 t e substations the carrier is to be sent.

In the accompanying drawings which illustrate a construction embodyingmy invention, Figure 1 is a perspective view of the carrier. Fig. 2 is alongitudinal sectional view through the carrier. Fig. 3 is a, crosssectional view taken on the line YY Fig. 1 looking toward the buffer.Fig. 4 is a cross sectional view on the line X X Fig. 2.

Like letters of reference refer to like parts throughout the severalviews.

In the head of the carrier A is a bufier of yielding material such asfelt which is secured to the plate C inside of the carrier by thebolts'D. Between the end of the carrier and the buffer B is a flexiblewasher or leather, ring E on which. is placed the arrow E. This washeris of greater diameter than head A and acts as a skirtto prevent leakageof air by said head. The ring E is secured to the hun er head B by thepins G which when the parts are assembled rest on the end of the head ofthe carrier as shown in Fig. 2. The bnrfer head B, plate E all rotatetogether so arrow E can be moved desired number to represent thesubstation to which the carrier is to be sent. The casing of thecarrier-adjacent to the head is provided with any desired number ofcharacters to indicate the corresponding number of substations in thesystem and may be used to send parcels or mess es to any one of thesubstations, as it is only necthat the pointer or opposite any of theheadtwo subscrioing essary for the attendant to adjust the pointer orarrow and indicate the desired station before inserting the carrier intothe tube for transmission to the central station, from which centralstation the carriers are despatched in tubes leading to the stationindicatedby' the number opposite the pointer.

The rear end of the carrier is provided with a flange L against whichrests the felt ring K, which when placed in the position shown in Fig.2, is held against displacement by the metal ring J s rung into thegroove H, and when the ring I becomes worn from use, the metal ring issprung from the groove and the felt ring removed and a new onesubstituted,

. after which the ring is sprung back again and holds the new felt ringin place. This feature is of decidedadvantage over the old con%struction where a fiber ring was placed per manently on the rear of thecarrier. This improved felt ring and metal ring are not claimed as apart of this-invention as the same form part of an application about tobe filed by Edward G. Thomas of New York city.

Having thus described the nature of my invention and set forth aconstruction embodying the same, what I claim as new and desire tosecure by Letters Patent of the United States is:

' In a carrier for pneumatic despatch tube apparatus, the casing havingstationindicating characters displayed on its periphery, a rotatablehead on said carrier, and a flexible washer carried by saidhead ofgreater diameter than said casing having a pointer thereon to designateany one of the station-indicating characters as the head is rotated.

In testimony whereof, I have signed my name to this specification in theresence of witnesses, this sixth day of July A. L. 1905. I

ISAAC W. LITCHFIELD. Witnesses:

R. W. MORRELL, Gnonen W. Eon-an.

